Lopez-Prieto, Israel J. published the artcileA direct injection liquid chromatography tandem mass spectrometry method for the kinetic study on iodinated contrast media (ICMs) removal in natural water, HPLC of Formula: 117-96-4, the main research area is natural water iodinated contrast media removal liquid chromatog; Complex aqueous matrices; Direct injection; Iodinated contrast media; Liquid chromatography-tandem mass spectrometry; UV-Based oxidation processes.
Iodinated contrast media (ICMs) are a class of X-ray contrast media worldwide utilized for radiog. procedures. Since they cannot be removed efficiently during water treatment, they can be found in surface and groundwater. In this work, a rapid and sensitive direct injection liquid chromatog.-tandem (LC-MS/MS) method for the simultaneous anal. of seven ICMs media (iopamidol, ioxitalamic acid, diatrizoic acid, iothalamic acid, iohexol, iomeprol and iopromide) in complex aqueous matrixes has been developed and validated. The MDLs for the analytes ranged from 0.7 to 21 ng L-1 in ultrapure water, and recoveries ranged from 86 to 100% in drinking water, 85-103% in groundwater and 84-105% in WWTP effluent. A stereo-isomer for iopromide was separated This analytic method was applied to investigate the removal of target ICMs by low pressure ultra violet light (LPUV) advanced oxidation processes with three oxidants, hydrogen peroxide, free chlorine and monochloramine in groundwater. Results showed that the addition of oxidants did not enhance attenuation of ICMs, since fluence-based decay apparent rate constants were similar (KUV = 3.2 U+00D7 10-3, KUV-Cl2 = 3.6 U+00D7 10-3 and KUV-NH2 = 3.4 U+00D7 10-3 10-3 cm2 mJ-1). This yielded direct photolysis is the main mechanism to attenuate target ICMs.
Chemosphere published new progress about Drinking waters. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, HPLC of Formula: 117-96-4.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem